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  1. #1

    Member Since
    Feb 06, 2013
    Does Image Capture's TIFF use LZW?
    I understand that Apple's scanning program Image Capture uses compression with the TIFF format. What I can't seem to find documentation on is if that compression is lossless LZW (as I suspect). Does anyone know or know where this is spelled out? Thanks!

  2. #2

    chas_m's Avatar
    Member Since
    Jan 22, 2010
    Victoria, BC
    Mid-2012 MBP (16GB, 1TB HD), Monoprice 24-inch second monitor, iPhone 5s 32GB, iPad Air 2 64GB
    I could test this for you if you'd like, but before I get out the scanner and hook it up and go through all that -- why not test it yourself? You can open the resulting TIFF in something like Graphic Converter and see if its using any compression or not ...

  3. #3

    Member Since
    Feb 06, 2013
    Confirmed Compression
    Hello, thanks for your suggestion. I hadn't been familiar with the program "GraphicConverter". I had looked in Photoshop but I hadn't seen that info. GraphicConverter, however, did the trick. Under "Window --> Information" it says:

    "TIFF , Big-Endian, TIFF-LZW compression/Striped(200)/Non Planar"

    Not sure why Apple can't just make that info easy to find. Either way, now I know.

    Thanks for your help!

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